Automatic press-feeder.



J. LYNAH.

AUTOMATIC PRESS FEEDER.

APPLIOATION'IILBD DEO.21, 1911. 1,09 1,855. Patented Mar. 31, 1914.

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WITNESSES W xrromyz s.-

J. LYNAH.

AUTOMATIC PRESS FEEDER.

APPLICATION FILED DBO. 21, 1911.

1,09 1,855. Patented Mar. 31, 1914.

2 SHEETS-SHEET 2.

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JAMES LYNAH, 0F NEWBU'RGH, YORK, ASSIGNOR T0 E. I. no FONT DE NEMOUBS POWDER COMPANY, OF WILMINGTON, DELAWARE, A CORPORATION OF NEW JERSEY.

AUTOMATIC PRESS-FEEDER.

Specification of Letters Patent.

Patented as. at, teat.

Application filed December 21, 1911. Serial No. 667,238.

To all whom it may concern Be it known that T, JAMES LYNAH, a citizen of the United States, residing at Newburgh, county of Orange,'and State of New York, have invented a new and useful Tmprovement in Automatic Press-Feeders, of is a full, clear, and exact description, reference being had to the accompanyin drawings, which form a part of this spec' cation.

My invention is particularly adapted for; use where a paper or fabric strip is carried beneath a press for the purpose of printing or embossing.

Specifically it has for its purpose to pro vide means to produce what may be called,

a step by step movement to cause the paper,

fabric, or composite paper and fabric to feed under a press, to dwell during the pressing and then to be moved forward.

It is also my purpose to provide such a device which is capable of taking care of sheets of difierent widths.

I will now describe the embodiment of m invention shown in the accompanying drawings and then point out the invention in the claims.

In the drawings: Figure 1 is a side elevation partially in section of a machine embodying my invention. Fig. 2 is a partial plan view of the same. Figs. 3, 4 and 5 are detail views of my improved gripping device.

a is the roll or drum upon which the fabric or paper to be treated is placed, and b is the roll to which it is ultimately delivered. The roll a, by means of clamps c is so held as to require a pull to unwind the-paper. The winding roll I) is driven by means, which will hereinafter. be described, but the driving is such that it is insufficient to pull the paper or fabric from the original roll a but is sufficient to keep it taut.

d is a press which, for example, may be an embossing press. As, so far, described, the paper or fabric on the carrying roll a may there be unwound sufiiciently to carry it through the press and on to the winding roll 6, whose action, as before described, is suflicient to maintain the sheet taut but insufiicient to pull it from the winding roll. on the other hand, if desired, a fabric may be attached to the winding roll I) of sufficient length to extend back through the press, and

to which the fabric or paper to be treated may be attached. v

My invention, as before described, relates specifically to a device whose purpose is to pull the fabric or paper or material to be embossed through the press with a step by step movement. This I accomplish as follows: e-e are standards on opposite sides of the machine. Each standard at its lower end is attached to a shoe f which is guided in a groove 9 in the bed of the machine. upper end of each standard is attached to a link it which in turn is attached to the crank i, which crank 11 is on the shaft 7'. This shaft 7' carries the bevel wheel meshing with the bevel wheel 1 on the shaft m. On the lower end of the shaft on is a bevel wheel a, meshing with the bevel wheel 0 on the driving shaft p. On the shaft j is the pulley or belt wheel 9- on which is a belt r which passesto' The per frames 40. These gripper frames w are slidable on the bar t and are secured thereto at the desired transverse of the bolts 11.

The gripper proper consists of/ the pivoted bevel ended dog 4; it being pivoted to the gripper frame to so as to, normally, hang vertically, the depending beveled edges'contacting with the base of frame 20, when there is no fabric present. This prevents movement of the dog 0 to the left, Fig. 4, but allows it to swing to the right. There is also provided a stop awhich acts as a counterweight to bring the dog back to the ver-- tical position after it has been swung tothe right, and also bycontacting with the frame acts to stop the dog being swung'too far to the right. The construction of this gripposition by means ping dog 11 is such that in one movement of i paper or fabric. pulling it forward the dis-.

tance equal to the length of movement of too frame to. It should have been stated that thefframe w is outside the paper or fabric strip and'the dog 4) overhangs inwardly, so

that the free travel of the paper or strip to be treated by the press is in no way affected. In practice the forward and rearward movement of the standards e are such as to pull the desired amount of the paper or fabric to be treated in alinement with the press, and a small amount away from the press, and in the return movement of the gripper it remains in-that'position for a lengthof time sufficient for the press to act. By this construction, with certainty, the fabric or paper y, to be treated in the press, is in proper lengths brought under the action of the press, retained there a sufficient period for the press to act, and during the free movement of the press is withdrawn and a new portion brought into place.

Further, it may be seen that this device is equally applicable with varying widths of fabric or paper, because the gripper frame may be moved alon the rods or beams to accommodate the wi th of the paper or material bein acted upon, and all without in any way a ecting the free movement of the paper. When this gripping device or press feeder pulls the proper amount forward and releases it, it creates a slack which the roller 6 in its rotation is able to take up and winds upon that roll. The arrangement, however, is such that if there were no slack, the roller 6 would be unable to pull the fabric or paper forward on account of the slippage of the belt which drives that roller.

Having now fully described my invention, what I claim and desire to protect by Letters Patent is:

1. In anapparatus of the character described, a pair of longitudinally reciprocable and laterally adjustable gripping frames each comprising a base and a bracket whose lower end is supported at a distance from the inner edge of the base, said bracket having an upper overhanging portion, and a gripping dog pivoted on and depending from the overhanging ortion of each bracket and offset inward y relatively to the supported lower end of the bracket and overhanging the part of the base inside the supported lower end of the bracket.

2. In an apparatus of the character de scribed, in combination, a transversely adjustable grippin frame having a base over the inner part 0 which the part of the fabric or paper adjacent to its longitudinal edge is adapted to slide, means to reciprocate said frame longitudinally, said frame having an upwardly and longitudinally extending bracket located toward the outer part of the base, and a gripping dog pivoted on the bracket and overhanging a part of the gripping frame base inside the bracket.

3. In an apparatus of the character described, in combination, a gripper frame having an overhanging portion, means to reciprocate the frame, a gripping dog pivoted on and freely depending from said overhanging portion, said dog adapted to swing toward the fabric in a direction opposite to that of the. feed in position to grip the fabric during the feeding movement of the frame but being of such length as not to swing beyond the gripping position, said dog tending, when the frame is moved in the o posrte direction, to swing away from the fa 110 1n the direction of feed, and means adapted to limit the swing of the dog in the last named direction and tending to return the dog to its hanging bracket, part of which dog overhangs the inner portion of the base and part of which overhangs a portion of the base outside said inner portion, said dog having a lower end beveled downward in a forward direction, thereby enabling it to feed only in its forward direction of movement.

5. In an apparatus of the character described, in combination, a grippin frame, an overhanging pivoted gripping 0g, the lower surface of the dog having a bevel face and means to reciprocate said frame, and a regulating device connected to said dog acting in one direction of pivotal movement'of the dog as a stop and in the other direction as a counterweight. i

6. In an apparatus of the character described, in combination, gripping frames, each frame having a pivoted overhanging dog, the lower surface of which has a bevel face, said frames being movable toward and from each other and means to reciprocate said frames in unison, a regulating device connected to each dog acting in one'direction of pivotal movement of its corres onding dog as a stop and in the other direction as a counter weight.

In testimony of which invention, I have hereunto set my hand, at Newburgh, N. Y., on this 14th day of December, 1911.

JAMES LYNAI-I.

Witnesses:

RB. HEYWARD, WILLIAM R. Quinn 

